Heating-stove



(No Model.)

S. D. VOSE.

HEATING STOVE.

Human N- [NE N. PETERS Phnto-L'rlhoglaphor. Wuhinglun. D C

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HEATi e-s ovEQ EEPECIPICATION forming part of Letters Patent No. 305,411, dated September 1384- l Application filed December 31, 1893. (No model.)

To all whom, it may concern.-

Be it known that I, SAMUEL DAvENronr VosE, a citizenof the United States, residing at Milwaukee, .in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in HeatingStoves, of which the following is a specification.

My invention relates to improvements in heating-stoves in which a top air-heating chamber depends within the combustion and radiating chamber; and the objects of my improvements are to provide for detaining the air to be heated within the bottom of said chamber for the purpose of preventing the too rapid destruction of the bottom plate thereof by the heat, and to detain the flame and fire products in their passage around the depending air-heating chamber, so that while a current of cold air enters and circulates in direct contact with the bottom plate of said chamber to absorb heat therefrom before entering the latter, a large volume of air enters said chamber above the detaining bottom chamber, and is highly heated by the action of an "obstructed fire-flue around said depending chamber. The detention of the flame around the outside of the depending chamber not only secures a very hot interior heat-in1parting cylinder, but; has a like effect on the outer casing, thereby increasing the radiation of the outside as well The air-. retaining chamber is preferably formed of a; casting adapted to form the bottom of the depending chamber, and the cold air is caused as the inside wall of the fire-flue.

to impinge directly upon the bottom plate,

and is thus rendered effective in preserving it from the destructive effects of the fire. This provision for increasing the durability of the air-heatin g chamber, while increasing the heat of the air, is of great importance, because such The top of the stove is preferably of cast-iron,

to which the top of the airrheating. chamber is secured with a tight joint, formed in any suitable manner. The top of the air-heating chamber is also preferably of cast-iron, provided with a register, 9, and having a central collar, h, for a hot-air conducting-pipe. The surrounding fluc-spacef is divided by two or more horizontal semicircular partitions,i z', placed one near the bottom of the air-heating chamber 6 on one side thereof, and the other on the opposite side just below the smokepipe, so as to cause the products of combustion and the escaping heat to be partially retained around the depending chamber by divertin g the direct draft between the partitions '13 i, and thereby obtain very complete radiation of the heat both inward and outward at the upper portion of the stove.

The air to be heated is introduced into the 7 depending chamber 0 by a side opening, j, near its bottom, which communicates with an outside cold-air inletpipe, k, which may extend to the-bottom of the stove, or outside the apartment; .butthe air thus introduced will, upon entering the chamber, rise at once, and therefore will not be retained in contact with the lower hottest bottom plate of the chamber.

To utilize the hottest part of the depending chamber for the purpose of giving a high heat to the incoming'air, the bottom thereof is formed of a chambered casting, A, having a grooved circumferential rim, by which it is made to form a tight joining with the sheetiron cylinder 6, and having a side opening, I, which communicates with the outside coldair inlet-pipe It, just below the cold-air inlet j to the depending chamber. The top S of the chambered casting is preferably open at m, around the side farthest from the cold-air inlet Z, so that the air entering this bottom chamber, 12, is caused to pass in contact with the 2 A v I 305,411

bottom plate, a, and to circulate within this ,hot bottom space, 1), before it passes into the as shown by the arrows, while'at the same main heating-chamber c. This bottom chambered castin g greatly increases the air-heating capac1ty of a comparatively small air-heating chamber, and-by confining the comparatively cool incoming air in direct contact with the bottom plate, a, of the depending air-heating chamber the bottom plate isthereby caused to last much longer, because the heat absorbed by the direct contact of the incoming air with said bottom plate, a, tends greatly to prevent the burning out of this bottom plate, which recelves the greatest heat from the combustion-chamber.

The cold-air inlet Z may have the form of on elbow, as shown, so that the air entering it will be deflected downward upon the bottom plate, a, and thus caused to pass across to the opening m before it can enter the chamber 6,

time air entering said chamber 6 above the chambered casting will pass directly upward 111 said chamber 6, and thus supply a volume of h1ghly-heated air from the bottom confiningchamber, 1), the top plate, 8, whereof may be perforated; but I prefer to form it with the opening an at the side opposite to the inlet Z, as. shown.

The register 9 may be opened to let the hot air into the room in which the stove is placed. Any suitable provision may be made for cl eanng out the ashes collecting upon the semicircular partitions.

The bottom chamber-casting may be of any suitable form, and its elbow-shaped inlet is preferably integral-with the casting, which may be properly supported from the top of the stove by bolts 20, or in any suitable way.

The air-inlet may be on a level with the bottom of the chamber 1;, and the elbow or drop rform'is only to enable the manufacturer to make a circular iron chamber that will surround the fianges of the bottom and make a close fit, and also to afford the means of making a connection with the air-inlet and the chamber 6 by means of two joining-castings,

which complete the air-passage, one of said castings being riveted to the depending chamber, and the other to the outside joining-casing.

not for the retaining top plate, 8, of the bot tom chamber the air would absorb comparatively little heat from the bottom plate, 11., because it would rise at once on its entrance into the chamber, and would thereby lose a large amount of the heat.

I claim 1. In combination, in a heating-stove, the cylinder 6, having the air-inlet and the bottom chambered casting, A, having the air inlet Z and outlet m, and theouter stove-shell, a, surrounding said clyinder and bottom casting, the said air-inlets opening into the same coldair pipe at the side of the stove-shell, and the air being heated in separate volumes, as shown and described.

2. The depending cylinder forming the air I heating and supplying chamber 6, having the side air-inlet, j, combined with a chambered casting, A, adapted to form the bottom of the cylinder-chamber 6, having a side air-inlet, Z, and an air-outlet opening, m, in its top plate, 8, at its side within the chamber a, opposite to the air-inlet, and a suitable inclosing-case sage through the chamber 1), substantially as described.

4; The combination, in a heating-stove, of the cylinder forming the air heating and'supplying chamber 2, having the side air-inlet,j, a top register, 9, and collared opening 71, with the chambered casting A, having the side airinlet, Z, and an open top plate, 8, the inclosing-case a, the semicircular partitions M, and

the air-conduit Zn, all constructed substantially as described. I

5. The combination, in a heating-stove, of the depending air-heating cylinder having the side air-inlet, j, with the bottom chambered casting, A, having the side inlet, Z, the inclosing-case, and the semicircular partitions 13 z, substantially as described, for the purpose specified.

In testimony whereof Ihave hereunto set my hand in the presence of two subscribing wit- SAML. D. VOSE.

Witnesses:

JOHN KEAYS,

' FLETCHER VOSBURGI-I. 

